Waterproofing bid estimation — AI calculates surface areas for you
Waterproofing bid estimation starts with calculating the areas to be waterproofed. Massoi reads blueprints and calculates floor and wall areas, penetrations, and details automatically.
Challenges in waterproofing bid estimation
Surface area accuracy is critical
Waterproofing must be applied continuously. Too little material = redo the waterproofing. Too much = wasted cost. Every square foot and linear foot counts.
Details drive up the price
Floor drains, penetrations, wall-to-floor transitions, inside and outside corners — each has its own labor and material usage.
Listed systems
An ICC-ES listed or ANSI A118.10 compliant system is effectively required by code. Membranes, fabrics, and accessories must all be from the same manufacturer's approved system.
How does AI-powered waterproofing bidding work?
Upload wet area drawings
Upload floor plans and wet area details. Massoi identifies areas to be waterproofed and height zones.
AI calculates surface areas
AI calculates floor and wall areas, accounts for height zones (6 ft / 4 ft), and linear feet of details.
Select system and bid
Review surface areas, select waterproofing system (liquid-applied/sheet), add your unit prices — submit your bid.
Waterproofing price guide 2026
Indicative prices including materials and labor.
| Work | Price | Note |
|---|---|---|
| Bathroom waterproofing (liquid-applied) | $5-8/sqft | 2 coats of liquid-applied membrane |
| Bathroom waterproofing (sheet membrane) | $8-12/sqft | Sheet membrane installed |
| Floor drain connection | $80-150/ea | Penetration + reinforcement fabric |
| Foundation waterproofing | $4-10/sqft | Liquid-applied or sheet-applied on foundation walls |
| Basement wall membrane | $5-12/sqft | Self-adhered membrane + dimple board |
| Deck / balcony waterproofing | $6-15/sqft | Polyurethane or epoxy traffic coating |
| Drain tile (perimeter) | $12-25/lf | 4 in. perforated pipe + gravel + filter fabric |
| Moisture inspection and report | $300-700/ea | Moisture survey and documentation |
Try how AI calculates waterproofing surface areas from blueprints in seconds.
Frequently asked questions about waterproofing bid estimation
How are waterproofing surface areas calculated?
Waterproofing surface areas are calculated by measuring the areas of floors and walls to be waterproofed. In wet areas, wall waterproofing typically extends up to 6 ft at showers and 4 ft elsewhere. After waterproofing comes tile work. AI calculates surface areas from floor plans automatically.
How much does bathroom waterproofing cost?
Bathroom waterproofing typically runs $5-12/sqft. Liquid-applied membrane is more affordable ($5-8/sqft), sheet membrane is higher ($8-12/sqft). A full bathroom waterproofing scope costs $1,200-3,000.
What does a listed waterproofing system mean?
An ICC-ES listed or ANSI A118.10 compliant waterproofing system means that the entire assembly has been tested and approved as a complete unit. A listed system is effectively required by code for showers and wet rooms.
Related content
Concrete Bid Estimation | AI Calculates Volumes & Quantities
Concrete bid estimation with AI. AI calculates concrete volumes and formwork from blueprints automatically. Concrete wo…
Facade Bid Estimation | AI Tool for Surfaces
Facade bid estimation with AI. AI calculates facade surface areas from blueprints automatically. Facade work price guid…
Tiling Bid Estimation | AI Takeoff Tool
Tiling bid estimation with AI. AI calculates tiling surface areas from blueprints and produces a bid including material…
Bid Calculation for Construction — AI Calculates in Minutes
AI-powered bid calculation: upload a blueprint, AI does the quantity takeoff and pricing. Complete bid in minutes. Try…
Ready to ditch the paperwork?
Book a 30-minute consultation — we'll show you how AI handles takeoffs, calculations, and bids for you. No commitment.